喜爱植物的11岁小女孩莫莉（陈思诺 饰），和植物学家爸爸（王千源 饰）带回家的机器人阿鲁一起长大。爸爸意外失踪，莫莉在妈妈叶霖（蒋勤勤 饰）的鼓励下，决定和阿鲁一起找回爸爸，而她要面对的成长挑战才刚刚开始……
To not burden their impoverished parents, two siblings decide to share a pair of shoes after the brother loses the sister's. While this turns out to be more difficult than they imagined but fate offers a chance in the form of a marathon.
The film is inspired by the true-to-life story of the discovery of the long-lost “Opus 28” manuscript from Norwegian composer Johan Halvorsen, originally performed in 1909 by Canadian violinist Kathleen Parlow, to whom the piece was dedicated. Campbell portrays a student who seeks to complete her thesis on Parlow by organizing a public performance of “Opus 28” from Toronto to Oslo. The cast includes Dueñas, Melanie Scheiner, Eve Duranceau, Maxim Gaudette, Rosa-Johan Uddoh, and Eileen Davies.
